Add Font Awesome to Gravity Forms Submit Button

<?php
// filter the Gravity Forms button type
add_filter("gform_submit_button_1", "form_submit_button", 10, 2);
function form_submit_button($button, $form){
return "<button class='button' id='gform_submit_button_{$form["id"]}'><span><i class='fa fa-share fa-2x'></i> Send </span></button>";
}
//Change hook of gform_submit_button_X to the form that you are using 
//Change <span><i class='fa fa-share fa-2x'></i> Send </span> to Font awesome and text of your choice

Is there a way we can specify a certain icon for each form? For example, I have one form that needs a paper plane, and another one needs a download icon for the submit button. When I try adding the same code, but change the form id # I get an error saying I can't use the "form_submit_button" twice. Any advice appreciated!

@ninjaval Simply copy the whole filter and function, and add the relevant form number.

Gravity Form ID 2:
add_filter("gform_submit_button_2", "form_submit_button_2", 10, 2); function form_submit_button_2($button, $form){ return "<button class='button' id='gform_submit_button_{$form["id"]}'><span><i class='fa fa-newspaper-o'></i> SUBSCRIBE</span></button>"; }

Gravity Form ID 8:
add_filter("gform_submit_button_8", "form_submit_button_8", 10, 2); function form_submit_button_8($button, $form){ return "<button class='button' id='gform_submit_button_{$form["id"]}'><span><i class='fa fa-download'></i> DOWNLOAD</span></button>"; }

thanks

If you are using this method and with update to Gravity Forms v2.3.4 the submit button does not work.

This is an awesome, straightforward example and worked perfectly! Thanks for sharing!!

To use the button backend text, you should do something like that :

add_filter( 'gform_submit_button', 'form_submit_button', 10, 2 ); function form_submit_button( $button, $form ) { return "<button class='button gform_button' id='gform_submit_button_{$form['id']}'><span class="icon icon-arrow" aria-hidden="true"></span>{$form['button']['text']}</button>"; }
And of course aria-hidden="true" for a right accessibility as you put an icon in your button.

The important for the text is {$form['button']['text']}

{$form['button']['text']} not works for me, I have to use {$form['buttonText']} instead. (GF v2.6.3)